There are some decent poker rooms in Wisconsin with the Patowatomi Casino having the best one by a long shot. There are many online poker rooms still accepting residents from Wisconsin. The gambling laws are written where a good lawyer might be able to rule that poker is legal.
Wisconsin Poker Laws
Unfortunately according to the Wisconsin gambling laws a bet is "bargain in which the parties agree that, dependent upon chance even though accompanied by some skill, one stands to win or lose something of value specified in the agreement", that will rule poker illegal unless you can convince the judge that poker is a "bona fide contest for the determination of skill". If you are convicted of illegal gambling you will be charged with a class 2 misdemeanor. If this is your first conviction, the maximum charge will be 90 days and a maximum $1000 fine.
Where to play live poker in Wisconsin
There are good poker rooms in this state with Texas Holdem, Omaha poker and Omaha hi/lo. The largest poker rooms can be found inside the Patowatomi Casino, the St. Croix Casino in Turtle Lake and the Ho-Chunk Casino in Dells.